Difficulty 0
ES01.01- Show all the information of teachers
ES01.02- Show all the information of subjects
ES01.03- Show all the information of teach table
ES01.04- Get the category of the teachers
ES01.05- List the name and the category of teachers
ES01.06- Get the categories of teachers without duplicates
ES01.07- Get the name of the TEU teachers
ES01.08- Name of the TEU or ASO6 teachers